PPT-Computer Evolution

By John Speas 1970s Xerox creates PARC which created essential computer technologies Intel releases the first microprocessor at 200 each Popular Electronics announces the Altair 8800 Bill Gates and Paul Allen begin talk of Microsoft and Stephen Jobs and Steve Wozniak show the first Apple computer. By Frank W. Elwell. Note:. This presentation is based on the theory of Ester Boserup as presented in . The Conditions of Agricultural Growth.. A summary of this and other macro-social theories can be found in . Change over time…. Geology. Began to study rock layers called strata. George Cuvier. Studied fossils. Found extinct species and noticed the deeper the fossil the more unique. Catastrophism. Charles Lyell. Bio . HL. Full Classification of Humans. Kingdom - . Animalia. Phylum - . Chordata. Class - Mammalia. Order - . Primata. Family - . Hominidae. Genus - Homo. Species - Homo sapiens. subspecies - H. s. sapiens. The Importance of Evolution in Ecology. Ecologists study proximate or “how” questions:. How nutrients flow through ecosystems. Evolutionary biologists study ultimate or “why” questions:. Why does a stickleback fish have armor in one lake but not another?. Chapter 10. Biological Evolution. Evolution the word, has several meanings. Evolution – gradual change to improve or become more complex - change. Evolution – random changes made by chance to get what we see today – goo to you (theory of evolution). 3. Objectives. Advertising’s Role in Capitalism. Role in Manufacturing & Retailing. Know Era’s & Association with Culture. Identify Evolutionary Forces. The Value of an Evolutionary Perspective. THEORY OF EVOLUTION. The theory of evolution is scientists explanation of how living things began. .. Also called organic evolution . LIVING ORGANISMS HAVE CHANGED GRADUALLY OVER TIME TO FORM NEW ORGANISMS THAT ARE MORE COMPLEX.. Evidence of Evolution. Essential Questions. What is the anatomical evidence of evolution?. How are fossils used as evidence of evolution?. What evolutionary evidence do we have from the field comparative embryology?. Organism DNA. 1a. Some of the strongest evidence for evolutionary relationships comes from studying the DNA of different organisms.. 1b. The fact that all organisms use the same DNA molecule to code for genetic information suggests that these organisms share a distant ancestor.. A mechanism for change in populations.. Any change in the . inherited . traits within a population across generations. Individuals better adapted to their environment tend to survive and . produce more offspring. Mechanisms of concerted evolution. Unequal cross-over. Gene conversion: non-reciprocal transfer of information between homologous sequences; the main mechanism invoked to explain concerted evolution. of . the Red . Queen. CfE. . Advanced Higher Biology. Unit . 2: . Organisms and Evolution. SQA mandatory key information. A change in the traits of one species acts as a selection pressure on the other species. . Chapter 17: Processes of Evolution. Early Beliefs. 19. th. century: discovered species shared many traits, but lived in different parts of the world. Problematic – species only looked similar on the outside, but inside were very different . . The process by which organism change over time. Based on science, not opinion.. Darwin. :. Evolution is descent with modification. Evolution. :. changes through time. Species accumulate difference.